(Nonannual compounding using a calculator) Dennis Rodman has a $6,000 debt balance on his Visa card that charges an APR of 14.1 percent compounded monthly. Dennis's current minimum monthly payment is 4 percent of his debt balance, $240. How many months (round up) will it take Dennis to pay off his credit card if he pays the current minimum payment of $240 at the end of each month?

How many months will it take Dennis to pay off his credit card?

Answer:______ months. (Round up to the nearest unit.)